Write a program that accepts fi ve lines from the keyboard and saves them in two 2D arrays depending on whether the line length is longer than 20 characters (excluding newline and NUL). The program...

Write a program that accepts fi ve lines from the keyboard and saves them in two 2D arrays

depending on whether the line length is longer than 20 characters (excluding newline and

NUL). The program must print the contents of both arrays.

Write a program containing the function str_reverse(s1, s2) that reverses the case of

letters in the string s1 and saves the converted string in s2. The function must also return

a pointer to s2.